What is Mosque?
A mosque is a place of worship for followers of Islam. Muslims often refer to the mosque by its Arabic name, masjid, Arabic: مسجد — Arabic pronunciation: ['mæsdʒɪd] (pl. masajid, Arabic: مساجد — [mæ'sæːdʒɪd]).
The word 'mosque' in English refers to all types of buildings dedicated for Islamic worship, although there is a distinction in Arabic between the smaller, privately owned mosque and the larger, 'collective' mosque (Arabic: مسجد جامع, masjid jami‘), which has more community and social amenities.
The mosque serves as a place where Muslims can come together for salat (prayer) (Arabic: صلاة, ṣalat) as well as a center for information, education, and dispute settlement. The Imam leads the prayer.
They have developed significantly from the open-air spaces that were the Quba Mosque and Al-Masjid al-Nabawi in the 7th century. Many mosques have elaborate domes, minarets, and prayer halls. Mosques originated on the Arabian Peninsula, but are now found in all inhabited continents.
Other links:
Great Mosque of Kufa
Al-Masjid al-Nabawi
Jame Mosque of Esfahan
Imam Hussein Shrine (part1)
Imam Hussein Shrine (part2)
The history of mosques